Senior Full-Stack Engineer - LLM-Powered Code Review PoC

San Francisco, California, US on site Until 8/21/2026 5+ years exp First posted May 30, 2026 Last posted May 30, 2026
Job description

**Senior Full-Stack Engineer (Freelance/Contract, Remote)**

NexaFlow is developing a proof-of-concept automated code review tool powered by large language models (LLMs). We are seeking a Senior Full-Stack Engineer to design and deliver the prototype end-to-end.

**Key Responsibilities:**
- Own the entire proof-of-concept (PoC) development process, from architecture to deployment.
- Integrate webhooks for pull request (PR) analysis.
- Build a hybrid review engine combining LLMs and static analysis tools.
- Implement custom rule configuration for code reviews.
- Develop a review dashboard for users.
- Ensure Docker-based deployment of the solution.

**Requirements:**
- 5+ years of full-stack development experience with Python (FastAPI) or Node.js and React.
- Proven experience integrating LLM APIs (such as OpenAI GPT-4, Anthropic Claude) into production systems.
- Hands-on experience with CI/CD pipelines, including GitHub Actions or GitLab CI.
- Familiarity with code review tooling.
- Ability to work independently, handling all aspects from system architecture to deployment.
- Experience with static analysis tools (e.g., Semgrep, CodeQL) is a strong plus.

**Engagement Details:**
- Freelance/contract position.
- Fully remote work.
- Competitive rate based on experience.

About this role

Summary

Design and develop an end-to-end proof-of-concept code review tool using LLMs, static analysis, and deployment skills.

Job title

Senior Full-Stack Engineer - LLM-Powered Code Review PoC

Experience level

5+ years

Minimum experience

5+ years exp

Industry

software

Location requirements

fully remote work allowed, candidate can be anywhere

Salary

Not specified

Management role

No

Skills & keywords

Required skills

pythonreactllm APIsci/cddocker

Preferred skills

static analysis tools

Specializations

full-stackllm integrationweb developmentstatic analysis
Locations

Structured locations inferred from the posting.

United States

Remote Country